Alg1_Unit 4 Test A Sem2

What are the x-intercepts of the function f(x) = -2x^2 - 3x +20

(-4,0) and (5/2,0)

What is the rate of change for the interval between 0 and 2 for the quadratic function f(x) = 2x^2 + x - 3. as represented in the table?

5

The graph of the function f(x) =-(x +3)(x - 1)is shown below. What is true about the domain and range of the function?

The domain is all real numbers, and the range is all real numbers less than or equal to 4.

Which function could be represented by the graph on the coordinate plane? (vertex of the graph is in the fourth quadrant)

f(x) = (x - 8)^2 - 6

Which could be the function? The graph shows the axis of symmetry for a quadratic function (straight line passing through 4 on the x axis)

f(x) = (x -4)^2

Which function has real zeros at x = -8 and x = 5

g(x) = x^2 + 3x -40

Half of the product of two consecutive numbers is 105. Which equation can be used to solve for n, the smaller of the two numbers?

n^2 + n - 210 = 0

Which is the graph of f(x) = (x + 3) ( x - 2)

parabola opens up. Verex at the left of -6 (kinda covers the number 6)

What are the solutions to x^2 - 6x - 16 =0

x = 8 and x = - 2

A square piece of paper has an area of x^2 square units. A rectangular strip with a width of 2 units and a length of x nits is cut off of the square piece of paper. The remaining piece of paper has an area of 120 square units. Which equation can be used to solve for x the side length of the original square?

x^2 - 2x - 120 = 0